Gun-sight.



R. B. GILMORE.

GUN SIGHT.

APPLtCATlON FILED JULY 6. 1915.

Patnted Jam. 11, 1916.

ROBERT 1B. GILMORE, OF MORROW, OHIO.

GUN-SIGHT.

Specification of Letters Patent.

Patented Jan. 11, 1916.

Application filed July 6, 1915. Serial No. 38,208.

To all whom it may concern:

Be it known that I, ROBERT B. GILMORE, a citizen of the United States,and a resident of Morrow, in the county of lVarren and State of Ohio,have invented certain new and useful Improvements in Gun-Sights, ofwhich the following is a full, clear, and exact description, referencebeing had to the accompanying drawings, forming part of thisspecification.

My invention relates to gun sights in which a peep sight is provided inconnection with a channel sight.

It has as its object the providing of such a sight adjustable for eithernature of sight at any desired range.

A further object thereof is to provide a peep sight which is very easyto find with the eye, and also to provide a sight in which there arevarious sizes of peep and sizes and shapes of channels.

These objects I accomplish by that certain construction and arrangementof parts to be hereinafter more specifically pointed out and claimed.

In the drawings, Figure l is a side elevation of a gun barrel with thesight in section. Fig. 2 is a perspective view of the sight. Fig. 3 is avertical section of the gun barrel taken behind the sight. Fig. 4 is alongitudinal section of the modification of the sight which isadjustable for different sized openings. Fig. 5 is an end elevation ofthe said modified sight. Fig. 6 is a perspective view of the rotatablesight portion of said adjustable sight. Fig. 7 is a detail showing themounting plates therefor.

The gun barrel 1 has at its end the sighting pin 2 which is to be usedwith either the peep or the channel sight. The mounting plate 3 of thesight is provided with a dovetailed block .t which is adapted to slideinto a groove in the barrel of the gun, fitting in tightly so as tosecurely mount the sight on the barrel without its being subject tochance displacements. This block is at the forward end of the mountingplate and the other end is slotted at 5 to receive the range pin 6. Therange pin has alternate ridges 7 which are graduated as to height, thedepressions being used for the peep sight, and the top of the ridges forthe channel sight as will be described. The operation of this pinconsists in pushing it in for longer range and pulling it out forshorter range, the pin wedging up the rear end of the sight by forcingit away from the surface of the barrel. A notch is cut in the slot 5 toengage over the ridges 7, so that the mounting plate can sink into thedepressions.

The sight in its simpler form comprises a block 8 having a Vshapedchannel 9 in its upper surface. This channel is used for sightingtogether with the pin 2 when the range pin is in a position with one ofits ridges in the slot in the channel of the mounting plate.

The peep sight hole 10 is bored through the block 8 just below the baseof the channel 9. This sight is to be used when the mounting plate israised up on one of the ridges of the range pin. The two sights combinedmake it very easy to get a proper sight in connection with the pin 2 atthe end of the gun barrel, because the gunner in aiming can easily getthe pin 2 in line with the object and the bottom of the channel, andfrom this position it requires but a small movement to bring the eye tothe peep at just the right position. It is hard for eyes that are notvery strong to find a peep at all and the channel serves as a guide forthe eye as well as a preliminary sight finder.

Some eyes will follow a small peep and a narrow channel only with greatdifiiculty, and this is common with older people whose eyes are belownormal. Accordingly it is designed to provide for channels of differentsizes and for peeps of different sizes on a rotary piece which operateson a like theory to the simpler form now described. In thismodification, two vertical plates 11, 11 are formed on the mountingplate, said plates having apertures 12, 12 for the spindle 13 of therotary piece 14. Cut in this piece are preferably the two V-shapedchannels l5, 15, one wider than the other, and two U- shaped channels16, 16, one wider than the other. The two plates 11 and 11' have notches17 cut in them, so as not to interfere with the eye in sighting alongthe channels, and below the notches are the apertures 18, 18, in linewith the peep holes 19 in the rotary member. The peep holes 19 are ofvarying sizes and the two holes 18 are large enough to accommodate anyof the peeps.

Mounted below the rotary member on the mounting plate is a spring finger20, which presses against the surface of the rotary member and serves tohold it in such position as it is turned by the operator. It can be seenthat this modification embodies the itsraaa same idea as the simplerform first clescribed, and that the same advantages follow from its use,with the additional advantage that the user of the gun can turn therotary part to the position best adapted for his eye.

It will be noted that the peep holes are larger at their forward end,this being for the purpose of permitting the slight tipping of theSight, without obscuring the view of the sight pin at the end of thebarrel.

It is not desired that the claims that follow be limited to specificstructure, where general terms are used, in view of the fact thatvarious modifications might suggest themselves to the mechanic whichhave not been mentioned in this specification.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. In a gun sight, the combination with a sighting pin at the end of thebarrel of the gun, of an elongated block having a channel, and a tubularpeep hole through the block located ust below the base of the channel.

2. In a gun sight, the combination with a sighting pin at the end of thebarrel of the gun, of an elongated block having a channel, a tubularpeep hole through the block located just below the base of the channel,means for mounting said block on the barrel of the gun, and means forpositioning the block for sighting with the channel and with the tubularpeep hole.

3. In a gun sight, the combination with a sighting pin at the end of thebarrel of the gun, of an elongated block having a channel, a tubularpeep hole through the block 10- cated just below the base of thechannel, means for mounting said block on the barrel of the gun, andmeans for positioning the block for sighting with the channel and withthe tubular peep hole, said latter means being adjustable for varyingranges.

4. In a gun sight, the combination with a sighting pin at the end of thebarrel of the gun, of a rotary member having a series of channels ofvarying sizes cut longitudinally on its periphery, and a series of peepholes through said member located ust below the channels, said holesbeing or varying sizes.

5. In a gun sight, the combination with a sighting pin at the end of thebarrel of the gun, of a rotary member having a series of channels ofvarying sizes cut longitudinally on its periphery, and a series of peephole; through said member located just below the channels, said holesbeing of varying sizes, means for mounting said rotary member on thebarrel of the gun, and means for positioning it for sighting with thechannels and with the peeps.

6. In a gun sight, the combination with a sighting pin at the end of thebarrel of the gun, of a rotary member having a series of channels ofvaryin sizes cut longitudinally on its periphery, and a series of peepholes through said member located just below the channels, said holesbeing of varying sizes, means for mounting said rotary member on thebarrel of the gun, and means for positioning it for sighting with thechannels and with the peeps, said latter means being adjustable forvarying ranges.

ROBERT E. GILMORE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

